Door



S. A. WILDE DOOR Filed' Nov. 1s; 1951 2 Sheets-Sheet 2 Patented Aug. 23, 1932 PATENT Price SAIv'UE A. WJQLDE, OF TA'U'NTON, MASSACHUSETTS, ASSIGNOR TO GLENWOOD RANGE l COMPANY, OF TA'UNTON, MASSACHUSETTS, A, CORPORATION OF MASSACHUSETTS nooit` .Application filed November 18, 1931. Serial No. 575,707.

- The invention relates to metal doorsespe- 1 represents the front plate forming the cially adapted for stoves, ranges, andthe like. Y

Doors of the above type are generally made of relatively thin metal plate. Heat is 'apt to warp them and warping of the doors even 1n theslightest degree is aV serious defect. The doors are also subject to considerable strain.v The mounting of the doors throws a st rain upon them. Very often the doors are drop doors and have lcombined with them means operating to maintain the doors in a closed position or a counterba'lanced open position, the means assisting, also, in their closure. This control means throws a very severe strain upon the door and if concentrated upon thin metal plates, either directly or 1Undirectly, is apt to cause trouble. It is desirable that the face of the door be left unblemished, or, in other words, free from any visible reinforcement. ,Y

The object of the invention is to obviate all the difficulties above pointed out; to provide a door the outer structure of which,

though made of relativ-ely thin metal plate,

is so reinforced by a frame impervious' to heat thatthere is little o r no danger of the plates warping; to provide also'means whereby the frame will bear essentially all' the strain on the door and any strain brought upon the plates will not be a strain 'concentrated at a few points, but will be distributed evenly over the plates in their entirety. further object is to provide a structure in which the face of the door will be left free from all blemish, the means for reinforcing the door being all on the inside and for the most part entirely concealed.VA i' The@invention can best be seen and "under-V stood `by reference toV the drawings, in which` Y l y t Figure lshows the door in rear elevation.

Fig. 2 is a rear elevation of the door its rear or lining plate removed.

Fig. 3 is a section on the line 3-3vof Fig'. Fig. 4; is a section on the line 4--4 of Fig. Fig. 5 is a section on the line 5'-5 of Fig. and Y Fig. 6 is a section on the line 6'-6 of Fig. 2. Referring -to the drawings:

' Connecting also with the ends of the bars 8,

face ofthe door. 2 is the back plate or lining., The face plate 1 is preferably of heavier material .than the lining plate. Both plates are reinforced around their marginal edges by- -flanges, 3 representing the flange on the plate l and 4 the flange on the plate 2. These flanges lap by one another, the flange 3 on the face plate l lying on the outsideso as to give finish to the ledge of the door.

The marginal flanges on the two plates tend to space the two plates leaving a chamber between them. This chamber in that portion ofthe door lying adjacent its marginal edge is a relatively' shallow chamber, the door itself being relatively thin at this point. At a point removed from the marginal edge of the door the inner plate or lining 2 is preferably provided with a raised panel 5 formed by stamping.l rThis panel reinforces the lining plate 2 giving rigidity to it and also increases the thickness of the door and chamber formed between the two plates, the chamber between the face plate and that portion of the lining plate bounded Aby the panel beingV of considerable relativey depth. In practice the panel is of a size telit within the opening 6 in the body'or structure 7 closed by the .door (see Figs.` 2 and 3), that portion of the door extending beyond the panel bearing against the face of the body or structure around the openingY in it in themanner of a liange. l

Located between the two plates l and 2, and held securely in place in a manner presently to be described, is a frame preferably of cast metal or other metal structure possessflanges of the plate 2 and assist in preventing' lateral displacement of the frame when located within and between the two plates.

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vtogether at the bottom of the door,

8 with extension within that portion of the, chamber between the two plates lying immediately adjacent the bottom o f the door are bar sections 11, 11. rEhese bar sections are provided with lateral offsets 12, 12 which in the assembled door are adapted to bear against the marginal flange on the bottom of the plate 27 thereby assisting in preventing endwise displacement of the fla-nge in the assembled door and assisting, also, in securing the frame to the face plate 1 as will later be explained. The frame comprises, also, a head bar la which lies in that portion of the chamber between the two plates immediate ly adjacent the top of the door. rlhe thickness of all the bars and bar sections is substantially equal to the depth of the chamber within which they lie lso that they may provide an inside support and bearing for the plates 1 and 2 forming the face and lining of, the door. That portion of the bars 8, 8. lying beneath the raised panel 5 on the lining plate 2 is provided with raised ribs 15 by which the depth of the frame is increased to furnish an inside support and bearing for the panel.l All the bars and bar sections of the frame, with the exception of the head bar 111, are preferably integral and in practice are of a.y single casting. The head bar 14: is preferably a bar separate from the main body of the frame although practically forming a part, thereof. The bar is provided at points adjacent its outer ends with slots 16 on the un,-V der side thereof, and forked extensions 17 On the top ends of the respective side bars 9, 9 extend into these slots so to lie beneath the bar 14.

The inside frame is held bou-nd bet-,Ween the plates 1 and 2 and the plates fiXedly 5.- cured' to` the frame in the following manner: The head bar 14 of the frame lying adjacent` the top of the door is bound to the face plats 1 by straps 19 on the interior of the face plate which extend over the opposite end portions of the bar. lThe straps 19 are preferably fixed to the face plate by welding. At the bottom of the door'the frame is held clamped in the assembled door by the combined plates 1 and 2. The marginal flange 4l on the plate- 2 at the bottom of the door is provided with slots 20, while the flange 3' at the bottom of the door on the plate 1 is upset to form tongues 21 which enter the slots 2Oy when the marginal edges of the two plates are brought With the two plates thus connected they form a clamping member for holding the frallflV clamped between them. Thus the frame, is held at the top of the door by thev straps 19- on the plate 1 which engage the bar 1d, and at the bottom of the door the frame is held clamped by the combined plates In the as sembled door the frame is further retained at the bottom of the door by the offsets 12 on the bar sections 11 litting beneath the tongues 21 on the plate 1, these tongues being of sufficient length to overlap the offsets 12 after the tongues have passed through the slots 20 in the plate 2 at the bottom of the door. The frame thus being fixed to the plate 1 at the top and bottom of the door the clamping of the frame between the two plates and the assemblage of the plates and frame is completed by the fastening of the lining plate 2 to the frame. Thisis done byV screws 2e passed through the lining plate and fastened into the side bars 9, 9 and head bar 14. inasmuch as the lining plate 2 occupies a lined position With relation to the face plate on account of its flanged marginal edge fitting snugly within the marginal edge of the face plate, it is necessary that the frame; occupy its proper position within the chamber between the two-v plates else. the screws passed through the lining plate and fastening into the frame will not properly cci-ordinate with the threaded openings formed in the frame fory receiving the screws. In other werds, in assembling, the parts; of the frame must first be properly positioned before the lining plate can be fastened down. Accordingly in assembling the combined parts. the frame is first placed; within the fac-e plate to occupy a position substantially as; shown in Fig. 2. The lining plate is then applied to the face plate so that thetongues: 21 on the, bottom flanged edge of the face plate will: pass through the slots 20, in the adjacent flange-,d edge of the lining plate asl these flanges are,

brought together.. The frame is thenmoved down so that the offsetsl 12a en the bars 11 of the frame at the bottom thereof will extend beneath the tongues 21 substantially as shown in 4. The head bar 1e drawn up so that it will-lit snugly against the str-aps which The frame is new in position Y embrace it. where the openings in the lining plate and frame will properly ce--ordinate to receive` the screws 24 which fasten the lining plate to the frame. been completed all portionsyof the-frame will be heldimmovable against, later-ali or endw-ise displacement by the lining plate the liningl plate itself being'held against late-ral or end# wise displacement, bythe engagement of its marginal'flanges with, those of the-face, plate.4

Doors of the present type are usually drop doors,vbeing pivotally arranged to turn at: the-bottom, Thedeors are, also, commonly provided with means, operating to hold them in a substantially balanced position when open, to;V assist in their closure and to hold them when closed. Y The pivoting of the door at the bottom is provideyd` for by' the formation of'sockets 25finto which4 protnberances or buttsv 26. on the body on structure T, to whichthe dooris pivoted,i may extend.. The sockets 25 are formed in the bottom of thedooi by' Ycutting away# in part the marginal flanged edges ofthe face and lining-plates.

Afterithese fastenings have Those portions of the flanges forming the sides of these incisions will form the sides of the respective sockets so that when the proj ections or butts 26 enter the sockets the door resting to turn on these butts will be maintained against lateral displacement by the engagement of the butts with the sidewalls of the respective sockets. The bottoms of the sockets 25 against which the contained projections or butts will have bearing are the ends 27 of the frame bars 9. In other words though the door rests toy turn pivotally upon the projectionsl or butts, yet the weight of the door is borneby the contained frame and not by the attached plates.

Provision is also made that the contained frame shall bear the strain brought upon the bottom of the door are sets of parallellyV aligned slots 28, 28. A U-shaped member having a body 29 and arms 30 is passed through each of these sets of slots from the under side of the respective bars, the body 29 of the member engaging the web 3l on the bar between the set of slots, and the arms 30 of the member passing through the slots and, also, outward through the lining plate 2 of the door. Thus there is provided a connection with the frame to which arms 32, connecting with a door counterbalancing mechanism (not shown), may besecured so that all strain of this mechanism will be thrown on the contained frame and not upon the plates.

33 represents the handle of the door. This handle is preferably secured by a screw 34 passed from inside of the door through the lining plate, thence through the head bar 14: of the frame, and through the face plate, the handle being secured to the extended end of the screw. This arrangement admits of a hasp being held by the head of the same screw which holds the handle, the hasp assisting in maintaining the door in a closed position.

That portion of the chamber between the front and back plates unoccupied by the frame is filled with heat-insulating material 36.

Having thus fully described my invention I claim and desire to secure by Letters Patent of the United States l. A door comprising a front plate, a back plate, a rigid metal frame between the two plates, concealed means between the two plates for fastening the frame to the back plate, means for connecting the twoplates along one edge thereof whereby the combined plates will form a clamp assisting in the retention of said frame, and means for securing the back plate to said frame.

2. A door comprising a front plate, a back plate, a rigid Vmetal frame between the two plates, straps on the interior of the front plate securing the frame thereto, means hingedly connectingthe two plates along one edge thereof whereby the two plates will form a clamp assisting in the retention of'said frame, and means for securing the back plate to the frame. Y v

3. A door comprising a front plate, a back plate, said plates having overlapping marginal? flanges, al rigid metal frame between the two plates, concealed means between the two plates for securing the frame to the front plate, means for connectingthe overlapping marginal flanges of said plates along one edge thereof whereby the combined plates rwill form a clamping member assisting in the retention of the frame, and means for securing the back plate to the frame.

4;. A door comprising a front plate, a back plate, said plates having overlapping marginal flanges, a rigid metal frame between the two plates, concealed means for fastening the frame to the front plate, means for connecting said plates along one marginal edge thereof comprising tongues on the marginal flange af one plate extending into slots cut in the adjacent marginal fla-nge of the other plate, and means for fastening the back plate to said frame.

5. A door comprising a front plate, a back plate, said plates having overlapping marginal flanges, a rigid metal frame between the two plates, straps on the interior of the front plate adjacent one edge of the door overlapping said frame in part, and means for connecting said plates around the marginal edges thereof opposite the edge to which said straps lie adjacent, said means comprising tongues on the marginal ange of one plate extending linto-slots cut in the adjacent marginal flange of the other plate, and means for fastenin the back plate to said frame.

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6. A door comprising a front plate, a back plate, a rigid metal frame between the two plates including bars extending diagonally across the door from corner to corner and other bars extending adjacent the top, sides,

and bottom of the door, and means lying outside the face of the door fastening said-plates to said frame.

7 A door comprising a front plate, a bach plate having a raised panel, a rigid metal frame between the two plates including bars tween the two plates, concealed means for fastening the frame to the front plate, means for connecting said plates along one marginal edge thereoi comprising tongues on the marginal ilange of the front plate extending' through slots cutl iny the adjacent marginal flange of the back plate, offsets on said frame arranged to lie beneath said tongues, and means for fastening the back plate to said frame.

9. A door comprising a front plate, a back plate, a metal trame between the two plates including a bar separate from the main body of the frame and movable relatively thereto,

straps on the front plate retaining said bar,

and astenings securing the back plate to the body of said frame and to said bar.

10. A door comprising a Jfront plate, a back plate, said plates having overlapping marginal edges, the flange on the front plate overlapping that on the back plate, a metal frame between the two plates including a bar extending adjacent the top of the door, straps on the interior of the front plate retaining said bar, tongues on the marginal flange of the front plate at the bottoni of the door eX- tending through slots in the adjacent marginal edge ofi' the back plate, and means for fastening the back plate to said frame.

ll. A door comprising a front plate, a back plate, said plates having overlapping margii nal edges with spaced socket-leuning openings through said flanges at the bottom of the door, and a rigid metal trame between the two plates connected respectively thereto, said frame extending in part by said socket-forming openings and forming a bottom therefor.

l2. A door comprising a front' plate, aback plate, a rigid metal frame between the two plates connected respectively thereto, said frame having in it spaced sets of adjacent slots with a web between each set of slots, and fastenings extending from the under side of the frame with bodies-embracing respectively the webs between the respective sets of slots and with arms extending through the slots and through the back plate of the door.

SAMUEL A. NILDE 

